TOUCHGFX ... Add char to textarea ... How to add a char to the end of the text displayed in a textarea.

[hjh]

I do

void Screen1View::updateAsciiInView(char* CwChar)

{

// add to txtbuffer

Unicode::strncpy(textAreaAsciiBuffer, CwChar, 1);

textAreaAscii.invalidate();

}

and that works fine ...my char i s displayed in the first position.

But i need to add it to the end so need something like

void Screen1View::updateAsciiInView(char* CwChar)

{

get the current textbuffer

add to the end of the buffer

Unicode::strncpy(textAreaAsciiBuffer, buffer, buffer length);

textAreaAscii.invalidate();

}

But how to do that ...

THANKS ;o)

Hjalmar

[Peter BENSCH · Accepted solution]

You could define a variable, e.g. bufferPosition and store the length of the recent buffer in it, as it is done in Keyboard.cpp/Keyboard.hpp (part of the widgets):

void Keyboard::setBuffer(Unicode::UnicodeChar* newBuffer, uint16_t newBufferSize)
{
    buffer = newBuffer;
    bufferSize = newBufferSize;
 
    enteredText.setWildcard(buffer);
 
    // Place cursor at end of string if we already have something
    // in the edit buffer.
    bufferPosition = Unicode::strlen(buffer);
}

Regards

/Peter

[hjh]

Thanks ....helped me a lot

Hjalmar

[Peter BENSCH]

Great!

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

/Peter

[hjh]

hi thanks did that